#define MAX_BLK_DEV 32
typedef struct blk_dev {
	u32int (*read)(u32int, char *, u32int, u32int);
	u32int (*write)(u32int, u16int *, u32int, u32int);
	u8int used;
	u8int locked;
	u32int size; //Block Size
} bdev_t;

struct blk_ioreq {
	u32int pos;
	u32int len;
	u32int soff;
	s16int *buf;
};
